DotsFasteners is a trusted and leading Fastener's Manufacturer in India, renowned for delivering premium-quality fasteners that adhere to international and domestic industry standards. We offer a comprehensive range in multiple sizes, materials, and grades to cater to the varying requirements of industrial, construction, and infrastructure sectors.
🔩 Stainless Steel 321 Fasteners Manufacturer, Stockist & Exporter – India
DotsFasteners is a renowned manufacturer and leading global supplier of Stainless Steel 321 Fasteners. Designed for high-performance applications, SS 321 is a titanium-stabilized austenitic stainless steel offering exceptional resistance to intergranular corrosion and excellent mechanical strength in high-temperature environments.
We provide a comprehensive range of SS 321 Bolts, Nuts, Washers, Screws, and Stud Bolts at competitive rates, with full material traceability and timely dispatch.
🔧 Types of Stainless Steel 321 Fasteners We Offer
We supply a wide variety of 321 Fasteners in both standard and custom sizes:
- Stainless Steel 321 Bolts – Hex Bolts, Flange Bolts, Carriage Bolts
- Stainless Steel 321 Nuts – Hex Nuts, Lock Nuts, Dome Nuts
- Stainless Steel 321 Washers – Plain, Spring, Fender, Star Washers
- Stainless Steel 321 Screws – Machine Screws, Socket Head Screws
- Stainless Steel 321 Stud Bolts – Fully Threaded, Double End, Tap End
- Other Fasteners – Cotter Pins, Threaded Rods, Eye Bolts, Foundation Bolts
📦 Available in Metric (M3–M56) and Inch (3/6″ to 2″) sizes.
📐 Technical Specifications of SS 321 Fasteners
| Grade | Stainless Steel 321 |
|---|---|
| Specifications | ASTM A193 / A194, ASME SA193 / SA194, DIN, BS, ISO |
| Size Range | M3 to M56 / 3/6″ to 2″ (Custom sizes available) |
| Length | 3mm to 200mm |
| Types Available | Bolts, Nuts, Washers, Screws, Stud Bolts, Anchors, etc. |
| Packaging | Carton, Wooden Pallet, Shrink Wrap (Custom on Request) |
🧪 Chemical Composition – Stainless Steel 321
| Element | Max (%) |
|---|---|
| Carbon (C) | 0.080 |
| Manganese (Mn) | 2.00 |
| Silicon (Si) | 1.00 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.030 |
| Chromium (Cr) | 19.00 |
| Nickel (Ni) | 13.00 |
🔎 Note: Titanium is added for stabilization but is not specified in percentage here.
📊 Mechanical Properties – SS 321 Fasteners
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 515 |
| Yield Strength 0.2% Proof (MPa) | ≥ 205 |
| Elongation (% in 50mm) | ≥ 40 |
| Hardness – Rockwell B | ≤ 95 |
| Hardness – Brinell | ≤ 217 |
🧰 Applications of SS 321 Fasteners
Stainless Steel 321 Fasteners are preferred in applications that require resistance to scaling and corrosion at elevated temperatures:
- Heat Exchangers & Boilers
- Petroleum Refining Equipment
- Steam Service Components
- Chemical & Petrochemical Processing
- Aerospace Structures
- Food Processing Machinery
- Nuclear and Power Generation Equipment
🌍 Stainless Steel 321 – Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | S32100 |
| Old British | 321S31 |
| Euronorm (EN) | 1.4541 / X6CrNiTi18-10 |
| Swedish SS | 2337 |
| Japanese JIS | SUS 321 |
🚚 Packing & Delivery
- Dispatch Ports: Mumbai & Kalamboli, Maharashtra (India)
- Packaging: Export-grade (boxes, cartons, pallets)
- Payment Terms: LC, TT, Cheque, NEFT
- Taxation: 18% GST applicable within India
- Delivery: Timely worldwide shipping with full documentation
❓ What Are SS 321 Fasteners?
Stainless Steel 321 Fasteners are made from an austenitic stainless steel alloy stabilized with titanium to resist carbide precipitation during welding. These fasteners are ideal for service in temperatures up to 900°C (1652°F), offering extended durability in intermittent high-heat environments.
🏙️ Cities in India We Supply SS 321 Fasteners To
Mumbai | Pune | Bengaluru | Hyderabad | Ahmedabad | Delhi | Chennai | Kolkata | Rajkot | Coimbatore | Vadodara | Surat | Indore | Ludhiana | Jaipur | Nashik | Bhopal | Nagpur | Trivandrum | Jamshedpur …and more.
🌎 Countries We Export SS 321 Fasteners To
UAE | Saudi Arabia | Qatar | Oman | Kuwait | Iran | USA | UK | Germany | France | South Africa | Nigeria | Canada | Australia | Brazil | Singapore | Sri Lanka | Netherlands | China | Malaysia | Bangladesh | Turkey | Poland | Belgium
Contact Form
Contact Us
India
- Gat No. 358, Kharabwadi, WMDC, Behind BSNL tower, Ambethan road , Chakan -410501, Pune, Maharastra, India.
- 02135298002
- 9226549001/03
- marketing@dotsfasteners.com
- www.dotsfasteners.com